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Finding the Third Proportional to 74,132 and 159,900

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Solution

The third proportional to 74,132 and 159,900 is: 344,898.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,132 : 159,900 = 159,900 : x
  2. Step 2: Convert to fraction form
    74,132/159,900 = 159,900/x
  3. Step 3: Cross multiply
    74,132x = 159,900 × 159,900
  4. Step 4: Simplify right side
    74,132x = 25,568,010,000
  5. Step 5: Solve for x
    x = 25,568,010,000/74,132
  6. Step 6: Final answer
    x = 344,898.42

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.